* dwarf_reader.h (class Sized_dwarf_line_info): Add

	* dwarf_reader.h (class Sized_dwarf_line_info): Add
	track_relocs_type_ field.
	* dwarf_reader.cc (Sized_dwarf_line_info::Sized_dwarf_line_info):
	Set track_relocs_type_.
	(Sized_dwarf_line_info::process_one_opcode): Ignore the section
	contents when using RELA relocs.
	(Sized_dwarf_line_info::read_relocs): Add the reloc addend to
	reloc_map_.
	* reloc.cc (Track_relocs::next_addend): New function.
	* reloc.h (class Track_relocs): Declare next_addend.